131022141 has 4 divisors (see below), whose sum is σ = 174696192. Its totient is φ = 87348092.

The previous prime is 131022137. The next prime is 131022163. The reversal of 131022141 is 141220131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131022141 - 2² = 131022137 is a prime.

It is a super-3 number, since 3×131022141³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 131022141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131022341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21837021 + ... + 21837026.

It is an arithmetic number, because the mean of its divisors is an integer number (43674048).

Almost surely, 2^131022141 is an apocalyptic number.

It is an amenable number.

131022141 is a deficient number, since it is larger than the sum of its proper divisors (43674051).

131022141 is an equidigital number, since it uses as much as digits as its factorization.

131022141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43674050.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 131022141 is about 11446.4903354696. The cubic root of 131022141 is about 507.9039190950.

Adding to 131022141 its reverse (141220131), we get a palindrome (272242272).

The spelling of 131022141 in words is "one hundred thirty-one million, twenty-two thousand, one hundred forty-one".